252523 has 4 divisors (see below), whose sum is σ = 256360. Its totient is φ = 248688.

The previous prime is 252509. The next prime is 252533. The reversal of 252523 is 325252.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-252523 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 252523.

It is not an unprimeable number, because it can be changed into a prime (252533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1818 + ... + 1951.

It is an arithmetic number, because the mean of its divisors is an integer number (64090).

2²⁵²⁵²³ is an apocalyptic number.

252523 is a deficient number, since it is larger than the sum of its proper divisors (3837).

252523 is an equidigital number, since it uses as much as digits as its factorization.

252523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3836.

The product of its digits is 600, while the sum is 19.

The square root of 252523 is about 502.5166663903. The cubic root of 252523 is about 63.2072622910.

Adding to 252523 its reverse (325252), we get a palindrome (577775).

It can be divided in two parts, 2 and 52523, that added together give a palindrome (52525).

The spelling of 252523 in words is "two hundred fifty-two thousand, five hundred twenty-three".